(KSEE) California Governor Jerry Brown has signed a bill into law that limits full-contact football practices for teenagers.

The move aims to reduce concussions and other head injuries for young athletes. Public middle school and high school teams are now only allowed to hold two full-contact practices per week for 90 minutes each during the season. In the off-season, it’s not allowed at all.

“I don’t know if that’s better for a kid to have 90 minutes of continuous hitting as opposed to spaced out over three days,” says Hoover High School head coach Steve Nelson.

“The spirit of the rule is to keep kids safe and eliminate contact, but I think the flip side of that argument is that you’re not giving them enough contact to prepare for the contact they’ll have in the games,” Nelson explains.